Is Scheana Marie Shay's friendship with Ariana Madix coming to an end?

'Vanderpump Rules' Star Ariana Madix Hints At More Trouble In Paradise For Scheana & Shay

In a sneak peek at tonight's new episode of the fourth season of Vanderpump Rules, Shay and Katie Maloney confront Madix about the continuing tension between them.

"I just felt like talking to you at SUR wasn't the best. I just feel like there's been a lot of tension," Shay explains to Madix.

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"Everything is fine. Like, today, it's not a problem," she responds.

"We just both feel that you've been so extremely negative lately, and just angry all the time, and bit**y, and intimidating," Shay continues.

Then, the situation turns to the girls' relationship with Kristen Doute.

"Kristen isn't going anywhere in our life, and I don't want you and Tom to go anywhere, but--I'm not saying anyone of you are Stassi or anything like that--but it just feels like such a similar situation," Maloney explains. "I don't like hearing about someone questioning by integrity or my character because I'm willing to forgive. I question someone's integrity or character when they're not wiling to forgive."

Shay then reveals she's been contacted by Madix's mother, who was concerned about Madix's happiness, and potential drama between her and her boyfriend, Tom Sandoval.

For more Scheana Marie Shay, Katie Maloney and Ariana Madix, tune into Vanderpump Rules season four, airing tonight and every Monday night at 9 p.m. on Bravo.